PROBLEM TO BE SOLVED: To provide a diagnosis device which allows use of stable drugs that can be mass-produced and stocked in advance and thus does not require a drug production facilities nearby, and which also enables general pathological diagnosis.SOLUTION: A diagnosis device includes a neutron irradiation mechanism 1 configured to irradiate an examinee P, who has been dosed with a drug obtained by labelling a molecule that gets incorporated or bound to a test target with boron, with neutrons and a γ-ray detection mechanism 2 configured to detect sites generating γ-rays caused by nuclear reaction between the neutrons and boron in the examinee P.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】予め量産してストックすることができる安定な薬剤を用いることができ、薬剤を生成するための設備を診断装置の近傍に設ける必要がなく、汎用的な病理診断をも可能とする診断装置を提供する。【解決手段】検査目標に取り込まれる又は検査目標と結合する分子をホウ素により標識した薬剤が投与された受診者Pに対して中性子を照射する中性子照射機構1と、中性子と前記受診者P内のホウ素との核反応の結果生じるγ線の発生位置を検出するγ線検出機構2と、を備えた。【選択図】図1